Caravans, Campers & Trailers
Caravan, Camper & Trailer Electrical Work
Caravan 12V fault finding and full caravan, camper and trailer wiring installs, including battery and solar upgrades, DC-DC charging, electric brakes, breakaway systems and trailer plug wiring. 240V work is handled through a licensed electrician.
The numbers
- 7-pin flat plug, pin 5 (common Australian pinout)
- Service brakes
- 7-pin flat plug, pin 3 (common Australian pinout)
- Earth return
- 240V mains work
- Handled through a licensed electrician
Quick answer
What is involved in upgrading a caravan battery to lithium?
It starts with an assessment of the van, the existing wiring and the work proposed. The battery location, charging equipment, fusing and cabling need to suit the new battery, and the requirements that apply depend on the van, the equipment selected and the alteration being made. Wired Right in Albion Park Rail plans the 12V work with reference to current manufacturer instructions and the relevant authority’s requirements. Any 240V mains wiring, power points or inverter-output connections are handled through a licensed electrician.
We do caravan 12V fault finding and full caravan, camper and trailer wiring installations: batteries, solar, DC-DC charging, lighting, electric brakes, breakaway systems and trailer plugs. Faults are traced by testing the circuit from the tow vehicle through to the van, rather than guessing.
Battery upgrades, lithium in particular, need planning. Requirements depend on the vehicle or installation, the equipment selected and the work proposed. Refer to current manufacturer instructions and the relevant authority’s requirements before proceeding. We assess the alteration you are planning and explain what it involves before work is authorised.
Wired Right handles the 12V side. Any 240V mains wiring, power points or inverter-output connections are handled through a licensed electrician.
What this covers
Caravan battery & power upgrades
AGM to lithium conversions and battery replacements, with location, charging and protection assessed for the van and the battery chosen.
Solar & DC-DC charging
MPPT regulation and DC-DC charging from the tow vehicle, with fusing and cabling designed to the equipment manufacturers’ instructions and the overall system.
Inverters: the 12V side
Inverter supply wiring from the battery. Any 240V mains wiring, power points or inverter-output connections are handled through a licensed electrician.
Camper trailer & canopy fitouts
12V systems for camper trailers and canopies: lighting, water pump, fridge, charging and switching.
Electric brake & breakaway systems
Brake controllers installed and set up to the manufacturer’s instructions, and breakaway systems tested, with the work planned around NSW trailer braking requirements.
Trailer & Anderson plug wiring
7-pin flat and round, 12-pin flat and Anderson charge circuits, fused and sized for the run to the van.
Interior & exterior lighting
LED conversions, awning and annexe lighting, with switching set up to suit the house battery.
12V fault finding
Charging faults, battery drains, trailer light faults and “won’t charge while driving” problems traced from the tow vehicle to the van.
How the job runs
- 1
Inspect both ends
Charging and lighting complaints can start in the tow vehicle or the van, so we test both where needed before quoting.
- 2
Assess the alteration
We look at the work you are planning and the requirements that apply to it, with reference to current manufacturer instructions and the relevant authority’s requirements.
- 3
Design the upgrade
Capacity, charge sources and equipment matched to how you camp: powered sites, free camping or a mix.
- 4
Install and test
Circuits installed and protected to suit the design, then charging and brake operation checked. The quotation will identify the work and any reports or wiring diagrams included.
Caravans, Campers & Trailers: common questions
Does a lithium battery swap in my caravan need anything else changed?
It can. The battery location, charging equipment, fusing and cabling need to suit the new battery, and the requirements that apply depend on the installation, the equipment selected and the alteration proposed. We assess the van and the planned work, refer to current manufacturer instructions and the relevant authority’s requirements, and explain what is involved before you authorise anything.
Why does my caravan battery not charge while I am driving?
Possible causes include voltage drop over the cable run to the van, a tow vehicle charging system that does not suit the setup, a blown fuse, a poor connection at the plug, or a fault in the van’s charging equipment. We test from the tow vehicle to the van to find where the charge is being lost before recommending a fix.
Do I need electric brakes and a brake controller?
It depends on the trailer. NSW trailer braking requirements depend on the trailer’s mass and set out performance, axle, control and breakaway requirements, so check what applies to your trailer. Where a brake controller is fitted, it needs setting up to the manufacturer’s instructions for the trailer and load, because a poorly adjusted controller can affect how the combination stops.
Can a 7-pin plug carry trailer brakes, or do I need a 12-pin?
A 7-pin flat plug does carry a brake circuit: on the common Australian pinout, pin 5 is service brakes and pin 3 is the earth return. A 12-pin plug adds circuits such as battery charging, which suits vans that charge from the tow vehicle. The charge circuit is fused and the cable sized for the run to the van.
Do you do 240V work on caravans?
No. Wired Right handles the 12V side. Any 240V mains wiring, power points or inverter-output connections are handled through a licensed electrician.
Where we do this work
Based in Albion Park Rail, by appointment only, serving customers from across the Illawarra and Shellharbour. Contact us to discuss the work you need and current availability.
Related work
Caravans, Campers & Trailers
Talk to us about this job
Ring or send the vehicle details and what it needs. We will get back to you about the work and current availability, and the scope is confirmed with you before any work is authorised.